You need to read about the founding member of SEAL team 6, Richard Marcinko & what 'they' did to him

Great auto-bio: Rogue Warrior

Marcinko was the first commanding officer of this new unit. At the time, the Navy had only two SEAL teams. Marcinko purportedly named the unit SEAL Team Six in order to confuse other nations, specifically the Soviet Union, into believing that the United States had three other SEAL teams that they were unaware of. He personally selected the unit's members from across the U.S. Navy's special operations community, including a special counter-terrorist tactics section of SEAL Team Two, codenamed MOB-6. SEAL Team Six would be the Navy's premier counter-terrorist unit, like its Army counterpart Delta Force.[2][5] While typically a two-year command in the Navy at the time, Marcinko commanded SEAL Team Six for three years, from August 1980 to July 1983.[6]Red Cell

After relinquishing command of SEAL Team SIX, Marcinko was tasked by Vice Admiral James "Ace" Lyons, Deputy Chief of Naval Operations, with the design of a unit to test the Navy's vulnerability to terrorism. This unit was the Naval Security Coordination Team OP-06D, unofficially named Red Cell.[6] In 1984, Marcinko hand-picked twelve men from SEAL Team Six and one from Marine Force Recon.

This team tested the security of naval bases, nuclear submarines, ships, civilian airports, and an American embassy. Under Marcinko's leadership, the team was able to infiltrate seemingly impenetrable, highly-secured bases, nuclear submarines, ships, and other purported "secure areas" such as Air Force One, and disappear without incident. These demonstrations showed that a vulnerable military resulted from the replacement of Marine and Naval Military Police by contracted private security agencies often staffed by retired military personnel.

Marcinko has claimed, among other things, that Red Cell successfully captured nuclear devices from United States Navy facilities, and proved the viability of plans to:

penetrate and attack nuclear-powered submarines destroy subs by using them as dirty bombs capture launch codes for nuclear weapons aboard the subs by using mild torture techniques on personnel in charge of launch codes.

Former members of Red Cell, notably Steve Hartmann and Dennis Chalker, maintain that these exercises were a cover to move SPECWAR operators around the world for covert missions against real-world terrorists.[7]

Commander Marcinko retired from the Navy on February 1, 1989 with thirty years, three months and 17 days of enlisted and commissioned active duty service.

For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.